Temperature / Media

Media

Maximum temperature depending on the materials

ACM

AEM

EPDM

FKM

HNBR

NBR

VMQ

Mineral oils

Oils for motors

+130°C

+130°C

–

+170°C

+130°C

+100°C

+150°C

Oils for gearboxes

+120°C

+130°C

–

+150°C

+110°C

+80°C

+130°C

Oils for hypoid gears

+120°C

+130°C

–

+150°C

+110°C

+80°C

–

ATF oils

+120°C

+130°C

–

+170°C

+130°C

+100°C

–

Hydraulic oils

+120°C

+130°C

–

+150°C

+130°C

+90°C

–

Greases

–

+130°C

–

–

+100°C

+90°C

–

Fire-resistant

fluids

HFA group - Emulsion with

more than 80% water

–

–

–

–

+70°C

+70°C

+60°C

HFB group - Opposite

solution (water in oil)

–

–

–

–

+70°C

+70°C

+60°C

HFC group - Polymer

aqueous solution

–

–

+60°C

–

+70°C

+70°C

–

HFD group - Water-free

synthetic fluids

–

–

–

+150°C

–

–

–

Other fluids

EL + L heating oil

–

–

–

–

+100°C

+90°C

–

Air

+150°C

+150°C

+150°C

+200°C

+130°C

+100°C

+200°C

Water

–

–

+150°C

+100°C

+100°C

+90°C

–

Water for washing

–

–

+130°C

+100°C

+100°C

+90°C

–

Temperature range

Min.

-25°C

-40°C

-45°C

-20°C

-30°C

-30°C

-60°C

Max.

+150°C

+150°C

+150°C

+200°C

+150°C

+100°C

+200°C

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TECHNICAL DATA

Speed - Pressure

Raised pressures generate a disturbance in the hydrodynamics

at the sealing edge and lead to increased tightening in the sealing

lip on the shaft, increased friction and increased temperature at

the point of contact between the sealing lip on the shaft.

Code

Materials

Max. pressure

Max. speed

K8

NBR 80 Shore A

1.0 MPa

< 10 m/s

Y0

NBR 90 Shore A

1.5 MPa

< 2 m/s

Linear speed calculation:

s (m/s) =

[shaft Ø (mm)  x  speed (rpm)  x   π]

 

60,000

0

0

1000

2000

4000

3000

5000

6000

7000

0,1

0,2

0,3

0,4

0,5

0,6

0,7

0,8

0,9

1,0

Shaft speed (r.p.m)

Ød1 25

Ød1 50

Ød1 100

Ød1 150

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ROTARY SEALS | HIGH-PRESSURE SHAFT SEALS |

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